The solutions in the two arms of this U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is half-filled with a solution of 2 Msucrose and 1 Mglucose. Side B is half-filled with 1 Msucrose and 2 Mglucose. Initially, the liquid levels on both sides are equal. When the system illustrated above reaches equilibrium, the sugar concentrations on both sides ofthe U-tube will be .A) 2 Msucrose, 1 MglucoseB) 1 Msucrose, 2 MglucoseC) 1 Msucrose, 1 MglucoseD) 1.5 Msucrose, 1.5 Mglucose

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area